ArKNHOClFPBrBAuAgUPuLaAcCoFeCuNiVLiHeBeNaXeI molar mass

Molar Mass, Molecular Weight and Elemental Composition Calculator

Molar mass of ArKNHOClFPBrBAuAgUPuLaAcCoFeCuNiVLiHeBeNaXeI is 2022.1491 g/mol

Convert between ArKNHOClFPBrBAuAgUPuLaAcCoFeCuNiVLiHeBeNaXeI weight and moles

Compound	Moles		Weight, g
ArKNHOClFPBrBAuAgUPuLaAcCoFeCuNiVLiHeBeNaXeI

Elemental composition of ArKNHOClFPBrBAuAgUPuLaAcCoFeCuNiVLiHeBeNaXeI

Element	Symbol	Atomic weight	Atoms	Mass percent
Argon	Ar	39.948	1	1.9755
Potassium	K	39.0983	1	1.9335
Nitrogen	N	14.0067	1	0.6927
Hydrogen	H	1.00794	1	0.0498
Oxygen	O	15.9994	1	0.7912
Chlorine	Cl	35.453	1	1.7532
Fluorine	F	18.9984032	1	0.9395
Phosphorus	P	30.973762	1	1.5317
Bromine	Br	79.904	1	3.9514
Boron	B	10.811	1	0.5346
Gold	Au	196.966569	1	9.7405
Silver	Ag	107.8682	1	5.3343
Uranium	U	238.02891	1	11.7711
Plutonium	Pu	238.049560	1	11.7721
Lanthanum	La	138.90547	1	6.8692
Actinium	Ac	227.027752	1	11.2271
Cobalt	Co	58.933195	1	2.9144
Iron	Fe	55.845	1	2.7617
Copper	Cu	63.546	1	3.1425
Nickel	Ni	58.6934	1	2.9025
Vanadium	V	50.9415	1	2.5192
Lithium	Li	6.941	1	0.3432
Helium	He	4.002602	1	0.1979
Beryllium	Be	9.012182	1	0.4457
Sodium	Na	22.98976928	1	1.1369
Xenon	Xe	131.293	1	6.4927
Iodine	I	126.90447	1	6.2757

Computing molar mass step by step
First, compute the number of each atom in ArKNHOClFPBrBAuAgUPuLaAcCoFeCuNiVLiHeBeNaXeI: Ar: 1, K: 1, N: 1, H: 1, O: 1, Cl: 1, F: 1, P: 1, Br: 1, B: 1, Au: 1, Ag: 1, U: 1, Pu: 1, La: 1, Ac: 1, Co: 1, Fe: 1, Cu: 1, Ni: 1, V: 1, Li: 1, He: 1, Be: 1, Na: 1, Xe: 1, I: 1 Then, lookup atomic weights for each element in periodic table: Ar: 39.948, K: 39.0983, N: 14.0067, H: 1.00794, O: 15.9994, Cl: 35.453, F: 18.9984032, P: 30.973762, Br: 79.904, B: 10.811, Au: 196.966569, Ag: 107.8682, U: 238.02891, Pu: 238.0495599, La: 138.90547, Ac: 227.0277521, Co: 58.933195, Fe: 55.845, Cu: 63.546, Ni: 58.6934, V: 50.9415, Li: 6.941, He: 4.002602, Be: 9.012182, Na: 22.98976928, Xe: 131.293, I: 126.90447 Now, compute the sum of products of number of atoms to the atomic weight: Molar mass (ArKNHOClFPBrBAuAgUPuLaAcCoFeCuNiVLiHeBeNaXeI) = ∑ Count_i * Weight_i = Count(Ar) * Weight(Ar) + Count(K) * Weight(K) + Count(N) * Weight(N) + Count(H) * Weight(H) + Count(O) * Weight(O) + Count(Cl) * Weight(Cl) + Count(F) * Weight(F) + Count(P) * Weight(P) + Count(Br) * Weight(Br) + Count(B) * Weight(B) + Count(Au) * Weight(Au) + Count(Ag) * Weight(Ag) + Count(U) * Weight(U) + Count(Pu) * Weight(Pu) + Count(La) * Weight(La) + Count(Ac) * Weight(Ac) + Count(Co) * Weight(Co) + Count(Fe) * Weight(Fe) + Count(Cu) * Weight(Cu) + Count(Ni) * Weight(Ni) + Count(V) * Weight(V) + Count(Li) * Weight(Li) + Count(He) * Weight(He) + Count(Be) * Weight(Be) + Count(Na) * Weight(Na) + Count(Xe) * Weight(Xe) + Count(I) * Weight(I) = 1 * 39.948 + 1 * 39.0983 + 1 * 14.0067 + 1 * 1.00794 + 1 * 15.9994 + 1 * 35.453 + 1 * 18.9984032 + 1 * 30.973762 + 1 * 79.904 + 1 * 10.811 + 1 * 196.966569 + 1 * 107.8682 + 1 * 238.02891 + 1 * 238.0495599 + 1 * 138.90547 + 1 * 227.0277521 + 1 * 58.933195 + 1 * 55.845 + 1 * 63.546 + 1 * 58.6934 + 1 * 50.9415 + 1 * 6.941 + 1 * 4.002602 + 1 * 9.012182 + 1 * 22.98976928 + 1 * 131.293 + 1 * 126.90447 = 2022.1491 g/mol

Mass percent composition	Atomic percent composition

Formula in Hill system is AcAgArAuBBeBrClCoCuFFeHHeIKLaLiNNaNiOPPuUVXe

Computing molar mass (molar weight)

To calculate molar mass of a chemical compound enter its formula and click 'Compute'. In chemical formula you may use:

Any chemical element. Capitalize the first letter in chemical symbol and use lower case for the remaining letters: Ca, Fe, Mg, Mn, S, O, H, C, N, Na, K, Cl, Al.
Functional groups: D, T, Ph, Me, Et, Bu, AcAc, For, Tos, Bz, TMS, tBu, Bzl, Bn, Dmg
parenthesis () or brackets [].
Common compound names.

Examples of molar mass computations: NaCl, Ca(OH)2, K4[Fe(CN)6], CuSO4*5H2O, nitric acid, potassium permanganate, ethanol, fructose, caffeine, water.

Molar mass calculator also displays common compound name, Hill formula, elemental composition, mass percent composition, atomic percent compositions and allows to convert from weight to number of moles and vice versa.

Computing molecular weight (molecular mass)

To calculate molecular weight of a chemical compound enter it's formula, specify its isotope mass number after each element in square brackets.
Examples of molecular weight computations: C[14]O[16]2, S[34]O[16]2.

Definitions

Molecular mass (molecular weight) is the mass of one molecule of a substance and is expressed in the unified atomic mass units (u). (1 u is equal to 1/12 the mass of one atom of carbon-12)
Molar mass (molar weight) is the mass of one mole of a substance and is expressed in g/mol.
Mole is a standard scientific unit for measuring large quantities of very small entities such as atoms and molecules. One mole contains exactly 6.022 ×10²³ particles (Avogadro's number)

Steps to calculate molar mass

Identify the compound: write down the chemical formula of the compound. For example, water is H₂O, meaning it contains two hydrogen atoms and one oxygen atom.
Find atomic masses: look up the atomic masses of each element present in the compound. The atomic mass is usually found on the periodic table and is given in atomic mass units (amu).
Calculate molar mass of each element: multiply the atomic mass of each element by the number of atoms of that element in the compound.
Add them together: add the results from step 3 to get the total molar mass of the compound.

Example: calculating molar mass

Let's calculate the molar mass of carbon dioxide (CO₂):

Carbon (C) has an atomic mass of about 12.01 amu.
Oxygen (O) has an atomic mass of about 16.00 amu.
CO₂ has one carbon atom and two oxygen atoms.
The molar mass of carbon dioxide is 12.01 + (2 × 16.00) = 44.01 g/mol.

Lesson on computing molar mass

Weights of atoms and isotopes are from NIST article.

molecular weights calculated today

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